BritBike Forum logo
BritBike Sponsor BritBike Sponsor BritBike Sponsor
BritBike Sponsor

BritBike Sponsor

BritBike Sponsor
BritBike Sponsor BritBike Sponsor BritBike Sponsor
JWood Auction JRC Engineering dealers JWood Auction
Home | Sponsors, Newsletter | Regalia | Calendar | Bike Project | BritBike Museum | Spiders Cartoons, "OLD" BritBike Forum | DVD- Manuals & Parts books | BritBike Stickers & Decals
Upgrade to: Premium Membership | Premium Life Membership | Vendor Membership | Site Sponsor Membership
Member Spotlight
aprophet
aprophet
Chesapeake Virginia
Posts: 627
Joined: October 2001
Show All Member Profiles 
Shout Box
Search eBay for motorcycle parts in following countries
Australia, Canada, France, Holland, Italy, United Kingdom, USA
Random Gallery photo
Who's Online Now
204 registered members (57nortonmodel77), 2,335 guests, and 681 spiders.
Key: Admin, Global Mod, Mod
Newest Members
myshootingstar68, Caddy, Spitfiregary, Ashley, HerbertG
10073 Registered Users
Top Posters(30 Days)
Lannis 85
koan58 82
NickL 81
Stuart 64
Popular Topics(Views)
503,353 mail-order LSR
Forum Statistics
Forums34
Topics66,021
Posts638,989
Members10,073
Most Online3,995
Feb 13th, 2017
Like BritBike.com on Facebook

Previous Thread
Next Thread
Print Thread
Rate Thread
Mainshaft #461050
10/29/12 1:11 am
10/29/12 1:11 am
Joined: Jan 2006
Posts: 1,884
Asheville, NC
Mike Baker Offline OP
BritBike Forum member
Mike Baker  Offline OP
BritBike Forum member
Joined: Jan 2006
Posts: 1,884
Asheville, NC
65 TR6
I put together the best gearbox that I could from the bins of parts the owner gave me. I now suspect that at some point the factory changed thread count on the clutch end (and possibly the opposite end) of the mainshaft. Can anyone confirm?
Thanks, Mike

Support Your #1 BritBike Forum!
Membership Type! Free
Member
Premium
Member
Premium Life
Member
Vendor
Member
Site
Sponsor
Recognition No Premium Member Premium Life member (5 years) Vendor Member Site Sponsor Membership
Post commercial threads No No No Yes Yes
Custom title No Yes Yes Yes Yes
Upload avatar & photos No Yes Yes Yes Yes
Link avatar & photos Yes Yes Yes Yes Yes
Private Message Storage: 10 100 100 100 100
Length of signatures 255 600 600 600 600
Removes this very advert island between post 1&2 No Yes Yes Yes Yes
Price Free $12.90/year $105.00 No End
$55.00/5 years
$210.00/year
($17.50/month)
Email
Click on button >>
  Premium Member Premium Life member Vendor Member Site Sponsor Membership
Re: Mainshaft [Re: Mike Baker] #461063
10/29/12 2:30 am
10/29/12 2:30 am
Joined: May 2009
Posts: 613
San Rafael, Ca.
BikeVice Offline
BritBike Forum member
BikeVice  Offline
BritBike Forum member
Joined: May 2009
Posts: 613
San Rafael, Ca.

Yes, Triumph changed both the mainshaft threads from CEI to UNF for the 1968 model year.

ERic


1971 T120RV (R.I.P.)
1973 T140V/TR7
1993 Ducati 900 SS
Re: Mainshaft [Re: Mike Baker] #461066
10/29/12 2:39 am
10/29/12 2:39 am
Joined: Jul 2009
Posts: 3,549
Vic. Australia
P
Pete R - R.I.P. Offline
In Remembrance
Pete R - R.I.P.  Offline
In Remembrance
P
Joined: Jul 2009
Posts: 3,549
Vic. Australia
The thread at the clutch could be 9/16" x 20 tpi BSC,or 9/16" x 18 tpi UNF.

Re: Mainshaft [Re: Mike Baker] #461090
10/29/12 10:23 am
10/29/12 10:23 am
Joined: Jan 2006
Posts: 1,884
Asheville, NC
Mike Baker Offline OP
BritBike Forum member
Mike Baker  Offline OP
BritBike Forum member
Joined: Jan 2006
Posts: 1,884
Asheville, NC
Thanks.

Re: Mainshaft [Re: Mike Baker] #461093
10/29/12 11:07 am
10/29/12 11:07 am
Joined: May 2006
Posts: 509
melbourne, australia
7
76degree-triumph Offline
BritBike Forum member
76degree-triumph  Offline
BritBike Forum member
7
Joined: May 2006
Posts: 509
melbourne, australia
Hey Pete, were you at Broadford on the weekend? I broke the 5 speed and the box in practice on Sat and spent all day making a new one. Late Sat I discovered 5 speed mainshafts have a different thread next to the taper, you know the one that holds the clutch on. The one that you dont know is different until you need to replace it at a race meeting and the blokes you race with are out there doing laps.

Treasured memories.

Sunday-dont go there.


1950 Speed Twin outfit
1951 Thunderbird outfit (76 degree racebike, or is it 90 deg now?)
1955 BSA D3 minibike outfit
Triumph solo's

Moderated by  John Healy 


Home | Sponsors | Newsletter | Regalia | Calendar | Bike Project | BritBike Museum | Spiders Cartoons | "OLD" BritBike Forum | DVD- Manuals & Parts books | BritBike Stickers & Decals
Upgrade to: Premium Membership | Premium Life Membership | Vendor Membership | Site Sponsor Membership
Powered by UBB.threads™ PHP Forum Software 7.6.1.1
(Release build 20180111)
Page Time: 0.045s Queries: 15 (0.006s) Memory: 1.0151 MB (Peak: 1.1656 MB) Zlib disabled. Server Time: 2018-02-21 15:00:50 UTC